The latest human case of bird flu in the U.S. occurred in a patient with no reported exposure to affected animals, sparking ...

A second Missouri healthcare worker who had contact with a hospitalized patient infected with bird flu developed mild ...

In its latest update, the CDC said the second health care worker wasn’t tested for influenza because the illness had resolved ...

A third close contact of a patient in Missouri who was hospitalized with H5N1 bird flu has reported that they also ...

Mysterious US bird flu case in person without any known contact with an infected animal raises spectre of human-to-human ...

An extensive look at wastewater samples taken across the United States from May to July found traces of the H5N1 bird flu ...

The mandatory testing comes as the total number of infected herds in California has risen to 17. Nationally, officials have ...

Oseltamivir has a controversial past. Governments around the world have spent billions of dollars to stockpile the drug since ...

The convergence of multiple flu strains in one animal can allow new virus strains to form—just as they did in past pandemics.

Three people in contact with a hospitalized bird flu patient in Missouri have developed symptoms, officials said.

Avian flu in dairy cows could stick around on US farms forever, and is raising the risk of outbreaks in mammals—including ...

A second health worker developed milk respiratory symptoms after caring for a person hospitalized in Missouri with H5N1 bird ...